Results 1 to 10 of about 252 (118)
Formation of sucrose crystallization centers and their growth in a vacuum apparatus
BIO Web of Conferences, 2021 The article considers sucrose crystallization as a mass transfer process, which is a phase transition from a liquid phase to a solid phase, and includes two main stages: the formation of crystallization centers and the growth of crystals to the desired ...
Slavyanskiy Anatoliy +2 more
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Influence of modification of the cast metal structure by solid phase particles on the nucleation of crystallization centers and their stability [PDF]
Қарағанды университетінің хабаршысы. Физика сериясы, 2022 The inoculation method has wide possibilities for improving the mechanical and operational properties of cast metal, which makes it possible to create artificial centers of crystallization due to the direct introduction of dispersed refractory particles
Е.Н. Еремин
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Nanomodification is an effective methodfor forming the structure of the weld metal. Part II. [PDF]
Нанотехнологии в строительстве, 2020 The short-term existence of the melt in the weld pool and its overheating, a large temperature gradient near the interface and two-dimensional crystallization centers, in the form of fused grains at the weld pool boundary, reduce the probability and rate
Sizintsev Sergey Valerievich +3 more
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Influence Intensive Plastic Deformation on Phase Formation Process in Amorphous Alloys [PDF]
Журнал нано- та електронної фізики, 2016 The influence of intensive plastic deformation on structure and properties of amorphous alloys were investigated experimentally. Using highly sensitive dilatometer techniques shown that intensive plastic deformation of amorphous alloys leads to increased
V.I. Lysov +3 more
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Crystallization behavior and morphological features of ethylene-vinyl alcohol 44 copolymer
eXPRESS Polymer Letters, 2022 This work is a first attempt to study the crystallization behavior of ethylene-vinyl alcohol copolymer with 44 mol% of ethylene units (EVOH44) and to observe the supermolecular structures developed during its crystallization.
Clement Freymond +6 more
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Dispersion of the F+2 center in KCl crystal [PDF]
Solid State Communications, 1985 Abstract The dispersion due to F+2 center in KCl crystal is determined at liquid helium temperature through an ellipsometric technique using their polarization properties in the spectral region of the ls g→2p u transition. The maximum index change expressed as a function of the peak-to-peak dichroic absorption constant αd(cm−1) is given by (n ...
Donatti, D. A., Aegerter, Michel A.
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ALUMINIUM BRONZE. NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING
Литьë и металлургия, 2018 It is shown that melting and molding of aluminum bronze are difficult physical and chemical processes. In them the major role is played by the centers of crystallization of dendrites of a a-phase, the a-phase nanocrystals dissolved and the adsorbed ...
E. I. Marukovich, V. Yu. Stetsenko
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Nanostructural crystallization of metals
Литьë и металлургия, 2021 Based on thermodynamic calculations, it is shown that metal crystallization is an equilibrium nanostructural process. At the beginning, trigonal or tetragonal structure-forming nanocrystals are formed from elementary nanocrystals.
E. I. Marukovich +2 more
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Diffraction-based automated crystal centering
Journal of Synchrotron Radiation, 2007 A fully automated procedure for detecting and centering protein crystals in the X-ray beam of a macromolecular crystallography beamline has been developed. A cryo-loop centering routine that analyzes video images with an edge detection algorithm is first used to determine the dimensions of the loop holding the sample; then low-dose X-rays are used to ...
Jinhu, Song +5 more
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Crystallization features of casting alloys
Литьë и металлургия, 2023 It has been shown that elementary crystal lattices of basic phases and oxides of casting alloys do not satisfy the principle of structural and dimensional correspondence.
E. I. Marukovich +2 more
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